Block top - The block range and duration of your blockchain (in blocks) on creation of the current block Nonce - The transaction quantity for your from address (Keep in mind this begins at 0 so a nonce of 100 would actually be the 101st transaction submitted by this account) https://atozbookmark.com/story20459135/top-guidelines-of-explorer-blockchain-solana-https-hedgedoc-eclair-ec-lyon-fr-6mkao4fyqry-pm5xpak7hg